Power measurement video for best selling cool styel blue laser pointer

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Today to measure is a high-power Blue laser pointer, many businesses marked 2000mW / 3000mW, or even 5000mW.Let’s see how much power it actually.
http://www.laserpointerreview.com/power-measurement-video-for-best-selling-cool-styel-blue-laser-pointer-10537

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